Controlling and sounding apparatus



y 3, 19 J. E. JENKINS ET AL 6,314

CONTROLLING AND SOUNDING APPARATUS Filed Sept. 23, 1955 3 Sheets-Sheet l m N N INVENTORS JOHN ELLIOTT JENKINS & SAMUEL E. ADAIR Y; @oy Me-043,-

ATT'YS.

5 Sheets-Sheet 2:

ATT'YS.

S N K R S m A Du J D O A T T N T E E O V l L N Q E II E U v M A w n2 mwir m O w n 1 a .TJHVIAM Y .r Q Q B May 3, 1938. .1. E. JENKINS ET AL CONTROLLING AND SOUNDING APPARATUS Filed Sept. 25, 1933 May 3, 1938. J. E. JENKINS ET AL I CONTROLLING AND SOUNDING APPARATUS 3 Sheets-Sheet 5 Filed Sept. 23, 1953 mmw INVENTORS JOHN ELLIOTT JENKINS a SAMUEL E. ADAIR BY: @6'X WW ATT'YS.

Patented May 3, 1938 PATENT oer-ice CONTROLLING AND SOUNDING APPARATUS 9 John Elliott Jenkins and Samuel E. Adair, Chicago, 111., assignors, by mesne assignments, to Jenkins & Adair, Inc., Chicago, 111., a corpo- V ration of Illinois Application September 23, 1933, Serial No. 690,656 -13 Claims. (c1. na -100.3)

being actuated from a grooved sound track or v Our invention relates in general to means adapted to reproduce sounds or other sensory effects and adapted to control operative devices in conjunction with the sounds or other sensory effects artificially reproduced as from a record. The present application comprises a continuation in part of. our copending application, Serial No. 662,860, filed March 27, 1933, relating to a sound and control record and which in turn re lates to subject-matter previously disclosed in a division of our application Serial Number 641,842, filed November 9, 1932, and issued as Patent No. 1,909,765 on May 16, 1933.

An object of the invention is to correlate the reproduction 01' sensory efl'ects such as sound, with the effects produced by related devices, as for example devices'i'or actuating a picture reproducer or a control system for lights or the like, to provide automatically for a predetermined timed relationship in their operation. Preferably 20 the sound record ltsell. includes means for controlling the desired automatic relating of the timing of the two efiects.

For example, a lecture produced from a cyclic sound track or record may be correlated with demonstrating equipment illustrating the lecture, and our novel mechanism may be utilized automatically to correlate the cycle of the demonstration with the beginning and end 01. each repetition of the lecture. In some cases, the novel correlating means may be used to control the volume or other characteristic of the sound produced by the track or record which includes the control impulses, in addition to controlling the operation of related devices.

It may also be utilized to control warning signals in a remote location such as a manager's office, or lighting effects in a theater, or other effects which should be synchronized with the 40 sound produced.

While useful for various methods of synchronizing different efiects, the invention is of special utility in predetermining the initiation of a cycle of such efiects with the beginning of a sound track 45 or record which is repeated automatically over and over again.

Numerous other objects and advantages of the invention will be appreciated as the same is more fully understood from the following description,

50 which, taken with the accompanying drawings, discloses a preferred embodiment of and for the purpose of disclosing our invention.

Referring to the drawings:

Figure 1 is a diagrammatic representation of a 55 system embodying our invention, said system record by means of a magnetic pick-up device;

Figure 2 is a diagrammatic representation of a photo-electric pick-up device, which may be substituted for the magnetic pick-up in the system shown in Figure 1 for use with a photographic record;

Figure 3 is an enlarged diagrammatic representation of one form of sound record or track having an operating frequency superimposed thereon in accordance with our present invention;

Figure 4 is a diagrammatic representation of apparatus for making a record for use in practicing our invention.

Figure 5 is a diagrammatic representation oi. apparatus for operating a motion picture projector in conjunction with a sound record in accordance with our present invention.

Figure 6 is a perspective view of parts of the apparatus shown in Figure 5.

Figures 7, 8, and are diagrammatic presentations of record reproducing systems embodying 7 our invention in which the operating components of the record are used to progressively operate a selector switch and wherein means is provided to automatically return the selector switch to an initial or starting position when the record is finished reproducing. or when the system is-conditioned to again commence reproduction of the record.

Figure 9 is a side view of the selector switch shown diagrammatically in Figures 7, 8 and 10.

Figure 11 is a diagrammatic presentation of apparatus whereby a single control record may be used to govern or monitor the simultaneous operation of several records, each adapted to reproduce diifering sound sequences and of separate devices adapted to be operated each in conjunction with one of the records as its sound sequence is reproduced.

To illustrate the invention, we have shown on the drawings, in Figure 1, an electrical system for reproducing sound, and at the same time, controlling operable devices, such as tuned relays 21, from a record represented generally at 11, through a pickup device 15. The sound record I I may be made in any suitable or convenient manner known to the art and may be of any suitable form, that is to say, may be a groove formed in a cylinder or disk, as shown in Figural; may be a photographic record on film, as shown in Figure 2; or may be a magnetic record on wire.

' The record As shown in Figure 3, the record 11 consists of a single recorded track incorporating both 9. normal sound recording II, which, forsimplicity, we shall call the sound track, and a device-operating recording l3, which we shall call the operating component; that is to say, the normal sound track is combined with the operating component so that the record ll consists, in part, of recorded vibrations I4, comprising the resultant of the sound track i2, and the operating component IS.

The operating component l3 may have a sinusoidal wave form as shown in Figure 3, or may be of more complicated configuration. The wave may be a simple wave or may be the envelope of an oscillation of higher frequency.

Method of making the record The record ii, if the operating component is applied thereto artificially, may be prepared in any suitable or convenient manner as by connecting, with a suitable recording apparatus i4i, a suitable device I43 for delivering to the recording apparatus the operating component at the proper time so that the same may be superposed upon the sound vibrations as they are recorded, the sound vibrations being fed into the sound recording device by any suitable pickup, such as a microphone I45, if the record is made from the original sound, or a pickup device I46, where the record II is made from a previously recorded sound track, or a microphone and pickup may be used together if desired as where previously recorded incidental music is to be dubbed as a background in the record for the original sound.

The oscillating device l43 may be an oscillating electric circuit tuned to the frequency de-' sired for the operating component,- or may be a previously prepared record of an operating vibration having a desired frequency or frequencies. The oscillating device is connected with the recording device through a normally open control key I41, which key is closed by the operator whenever it is desired to impress the operating component upon the sound recording. This is known as "dubbing the operating component on the sound track.

Alternatively, a device capable of creating vibrations in the air, may be positioned near the sound pickup I45 of the recording device I, the vibration device being actuated at intervals to add the desired operating component to the sound waves reaching the pickup device.

Numerous other methods of superposing the operating frequency upon the sound track in the record will suggest themselves to those familiar with the art of recording sound waves and our invention is not necessarily limited to any particular mode of producing the composite record II. It is, however, preferable to prepare the composite record H by dubbing the operating frequency upon the sound track, rather than by adding the same to the sound waves before they are applied to the pickup I45,

The foregoing methods may be employed in making record grooves in wax or similar material, and in making magnetized wire records and photographic records. We also contemplate making magnetized wire and photographic records by first applying the actuating component upon the recorded sound track. In the case of the magnetic record, this may be accomplished by magnetizing the wire at the proper places in accordance with the desired operating component, the wire being either previously or subsequently treated to magnetize it in accordance with the sound track recording.

In photographic records, the operating component may be photographed on the undeveloped negative on which the sound track record is subsequently or has previously been photographed. and the double exposure'developed on the negative from which a positive print of the composite recording can be made, or a negative of a normal sound track record may be printed as a positive and the print of a separate negative of the operating component superimposed on the positive print of the sound sequence and the double exposure developed on the positive.

The sound-reproducing and device-actuating system consists of a suitable pickup device I! adapted to be vibrated in accordance with the vibrations recorded on the record II, a soundemitting device or loud speaker I9 connected to the pickup preferably through the amplifying system H, and a tuned relay 2| adapted to be actuated by the operating component of the record and also connected with the pickup device through a relay operating system 23 and filter 25.

The pickup device i5, as shown in Figure l of the drawings, may consist of an ordinary magnetic device, such as is commonly used in conjunction with the ordinary grooved phonograph record, or; an ordinary mechanical phonograph pickup may be used in conjunction with a microphone to impress the vibrations of the record ll upon the-input of the amplifying system H.

In Figure 2 of the drawings, the sound track ii is shown as a photographic record, such as is commonly used in the audible moving picture art and the pickup device includes the light source 28, the aperture 3! and a target 33, comprising a photo-electric cell, or other light-sensitive device, connected to the input of the reproducing system and upon which light rays from the light source impinge after passing through the aperturev and the photographic record II, as is well known in the art.

Our invention does not necessarily reside in the particular "form of record and cooperating pickup device employed but any suitable or convenient form or forms of record and cooperating pickup device may be used to apply the vibrations of the record upon the sound reproducing and device-actuating system.

Record producing and device operating system The amplifying system II also may be of any suitable or convenient form or arrangement for the purpose of receiving the vibrations initiated therein by the pickup device of whatever character used, amplifying the vibrations and deliver ing the amplified vibrations to the sound-emitting speaker I! and to the relay II.

To illustrate the invention, therefore, we have shown an amplifying system comprising a transformer 35, the primary winding 31 of which is provided for connection with the pickup and thus forms the input of the system and the secondary winding 39 of which is connected through a variable resistance volume control arranged as a potentiometer 4| to a vacuum tube 43, the grid 45 of which is connected with the shiftable member of the potentiometer 4|, the plate 41 of the vacuum tube 43 being connected to one endof the primary winding 49.0! a transformer ii, the other end of the primary winding being connected through a plate potential battery 58 to the filament 55 of the vacuum tube, said filament being also connected through the grid bias means.

preferably an electric battery 51, with the potentiomcter 4|. The filament 55 may be heated in anyconvenient manner as is well known in the art. One end of the secondary winding 53 of the transformer 5| is connected with the grid 65 of a vacuum tube '61, the plate 69 of which is connected to one end of the primary winding 1| of a transformer 13, the secondary winding 15 of which comprises the output of the amplifying system l1. The filament 11 of the vacuum valve 61 may be heated in any suitable or convenient manner and one side of the filament is connected through the grid bias means, preferably an electric battery 19, with the secondary winding 63 of the transformer 5|, the same side of the filament 11 being connected through the plate po tential battery 93 with the primary winding 1| of the transformer 13.

The speaker I9 is connected by means of suitable conductors 89 to the winding 15, the relay 2| being connected, through the relay-operating system 23 and the filter 25, to the winding of |5.

The filter 25 comprises inductance coils 9| and condensers 93 and forms a filter tuned to the frequency of the operating component of the record II, so as to pass the operating component freely while attenuating and suppressing other frequencies.

The input of the filter may be connected with the output winding 15 of the amplifying system I1, or may, as shown, be connected to the sec- 'ondary 92 of a transformer 94, the primary 96 of which forms a part of the primary circuit of the transformer 35. This has the advantage that the relay is not subjected to the volume control 4| of the amplifier I1 as'is the case where the relay is actuated from the output of the amplifier I1. The output of the filter 25 is connected to the input of the relay-operating system 23 which comprises means to amplify the operating component and includes a transformer 95, the primary 91 of which forms the input of the system and the secondary 99 of which is connected at one end to the grid IOI of a vacuum tube I03 and the other end of which is connected through a grid-biasing means, preferably an electrical battery I05, with one side of the filament I01. The filament I01 may be heated by any suitable or convenient means well known in the art and a battery or other power source I I5 is provided for applying the plate potential between the plate and filament.

The coil I 9 of'the relay is connected across the output of the amplifier 23. The relay 2| is adapted for operation by current delivered to the coil, thefunction of the relay-operating system 23 being to amplify the power 'of the relay-operating component sufficiently to operate the relay, which may require for its operation more power than is delivered to the operating system. The relay, when actuated by the operating component, operates the shiftable member I09, which may be mechanically connected to control a device to be operated, or, as illustrated, may be arranged to operate an electrical switch for controlling the circuit IIO, which, in turn, may be connected to effect the electrical control of any device to be operated.

While in some cases, it may not be necessary to utilize the amplifier .23 and the filter 25, since it is possible to operate the relay 2| directly from the output of the amplifier system I1, it is, however, desirable to provide these refinements in order to insure positive operation of the relay in response to the operating component on the record.

Any desired number of relays 2| may be connected in parallel and actuated from the output of the amplifier 23, as indicated in Figure l, by connecting the output to the bus connectors I23 and connecting a plurality of relays similar to the relay 2| for operation from the bus connectors I23, the relays may be individually tuned and connected directly to the bus connectors, or relays, either tuned or untuned, may be connected through the intermediary of band pass filters, that is to say filters adapted to pass the particular frequency to which the relays are desired to respond. I

If each relay is connected to the bus connectors through the intermediary of a filter, each filter may be selected or adjusted to pass a particular frequency so that by forming operating components |3 at different frequencies in the record, the several relays so connected may be caused to operate selectively. This arrangement will hereinafter be more fully discussed in connection with Figure 7.

If the'relay 2| is connected through a filter 25 and an amplifier 23, the relay itself need not be accurately tuned to the frequency of the cperating component as is the case if the filter is omitted.

It is also possible to operate a plurality of tuned relays 2| directly from the output of the relayoperating system 23. With such an arrangement, the relays may be mechanically tuned accurately, each to respond to an operating component for a particular predetermined frequency in order to obtain selective operation of the relays, the filter, if used in the combination, being a lowpass filter to pass all frequencies within the tuned range of the relays.

If the operating component has a frequency within the range of audible frequencies, the speaker or sound-emitting device I9 will, of course, respond tothe audible frequency of the operating component whenever the same is impressed upon the system by the pickup device.

It is possible to utilize a speaker I9, which will react only to a certain band of frequencies within the audible range and for all ordinary purposes, it is quite practical to use a speaker operating in the audible range of frequencies above cycles and below 5,000 cycles since a speaker in this range will accurately reproduce all normal speech and music and we contemplate using such a band frequency speaker and to maintain the operating components at frequencies below 80 cycles and above 5000cycles, even though frequencies as low as 40 cycles and as high as 10,000 cycles are audible.

In some instances, however, it may be necessary to utilize operating components having frequencies within the range of the speaker and since the reproduction of the operating component as sound may be undesirable where the sound sequence is being reproduced for its pleaslng effect upon the hearer, we have provided for eliminating the transmission of any sound by the device I9, which may be caused by the operating component.

This may be accomplished by causing the relays 2| to switch suitable filter circuits into operation in the speaker circuit so as to silence the speaker circuit to the operating frequencies only.

We prefer, however, to filter the operating component from the circuit 89, leading to the speaker, by inserting in the conductors 89, between the output of the amplifying system I1 and the sound-emitting device I8, ,a band-eliminating filter 28, which functions to highly attenuate the frequencies of 'the operating components ofthe record.

In Figure 5 of the drawings we have shown a system embodying our present invention arranged to accomplish the eontrolof a moving picture projector in timed relationship with a record containing operating components. The arrangement includes a pickup device I5, which, operating in conjunction with the record, is arranged to deliver the vibrations received therefrom to the sound amplifier I1 and the sound-emitting device IS. The pickup device also delivers the operating component through the transformer 84, filter 25 and amplifier 23 to the relay 2|, the switch I89 of which is connected through a time delay relay I89 more fully explained'below, to control an operating circuit 2 including a suitable power source I81 and the coil 2I3 of a relay 2I5. The relay 2I5 has a shiftable element 2I1 carrying a switch operating member 2I9, whichis normally biased towards switch open position by means of the spring 22I. 2I3 is energized by the closure of the switch I85, the switch 2I8 will be closed against the urge of the spring 22I'. The switch 2I9 is connected to control the operating motor of a motion picture projector 223 and the circuit including the switch 2I8 is preferably arranged to cause the projector 223 to operate when the switch 2I9 is closed. In order to hold the switeh .2l9 in closed position against the bias of the spring 22I after the operating frequency has passed by the pick-up device I5, we provide holding means comprising a holding finger 225 operatively associated with the shiftable element 2" of the relay 2I5. This holding finger is normally biased as by a compression spring 221 toward a position retaining the member H1 in switch-closing position. In order to open the switch 2I9 after the picture sequence projected by the device 223 is com pieted, the film 229 which is mounted for projection by the device 223, is provided with a cutout slot 23I therein, and the film, as it travels through the projector 223, passes between a pair of rollers 233 and 235 as shown in Figure 6 of the drawings. One of these rollers has a flange 231 adapted to register with the cut-out portion 25 of the film when the same passes between the rollers. The other roller has lateral flanges 239 to align the film properly on the rollers so that the slot 23I will register with the flange 231.

The rollers are preferably formed of suitable electrical conducting material and form switch means controlling a circuit including a. suitable power source 24I and a solenoid or operating coil 243 which, when energized, serves to retract the holding finger 225 against the urge of the compression spring 221', permitting the switch 2I9 to open under the influence of the spring 22I.

Itis desirable to incorporate a time delay element in the connection between the switch I89 and the relay 2 I 5. This may be accomplished by connecting the switch I88 in a series circuit IIII,

including an electrical power source I9I and the operating coil of a relay I89 of the time-delay type, having a normally open switch I85.adapted to close when the coil of the relay is energized in response to the closure of the switch I88. It is desirable to delay the closure of the switch I85 under certaincircumstances, in order that the relay will not operate if the switch I89 closes accidentally .as in response to irnperi'eetions in When the solenoid.

the record, or other circumstances, which impart a vibration in the systemapproximating the operating frequency. A dash-pot on relay MS may also be provided to guard against accidental operation of the super-sensitive relay 2|. In other words, by imparting a time delay feature in relay I89, closure of the switch I85 may bein the film, will permit the flange 231 of the roller 235 to engage and make electrical contact with the periphery of the roller 233, thus completing a circuit for energizing the solenoid 243 and permitting the switch 2I9 to open as aforesaid, thus stopping the operation of the projector .3.

The foregoing system is particularly well adapted for displaying a moving picture sequence repeatedly in conjunction with an audible sequence. The record II, and the picture projector 223 are preferably driven in timed relationship so that the record and picture sequence are compieted coincidentally or in any desired sequence, although in the illustrated arrangement they are not synchronized in the usual sense after the beginning of the sequence. lustrated arrangement, is reproduced on a phonograph turn-table having repeating mechanism for causing the pickup device to be returned to the initial or starting position on the record, after the record has been completely played, and the projector is provided with an endless film or the equivalent, which can repeat itself indefinitely. As heretofore stated, the rollers 233 and 235 render the projector inoperative at the end of the projection of the picture sequence, and the pickupdevice I5 causes the projector to start in operation as soon as the controlling operating frequency I3 engages the pickup preferably at the beginning, but if desired, at any time during the playing of the record. It is desirable, but by no means essential, to have the film 229 formed as a continuous strip as shown in Figure 5, since this is the simplest way of operating a continuous picture projector.

In Figures 7, 8, l0, and 11, we have illustrated systems wherein the record II may be utilized to control a progressively operable device, such as the selector switch illustrated in Figure 9 during the progress of the reproduction of the record and whereby the selector switch may be automatically turned to a predetermined setting from any switch position, as for instance, where it may be desired to turn the selector switch to, an initial or starting position at the termination of the reproduction of the record inorder to be ready for the next time the record is reproduced or played.

As shown in Fig. 9 of the drawings, the selector switch comprises a frame I5I carrying a rotary element I53 comprising a blade I55, the opposite ends of which are adapted to extend from the rotary support I53 in diametrically opposite directions. The ends of the blade I terminate in contact portions I51, I58, adapted when the blade is rotated on the frame I5I to progressively engage the blade contacting portions of a set of terminals I59, which are carried on an insulated The record, in the 11- support frame I6I mounted on the main frame I5I. The contactor I51 engages the terminals I59 in succession during one half turn of the blade I55 while the contactor I58 repeats the ter minal-engaging process during another half turn of the blade. Each one of the terminals I59 may be connected to form parts of external control circuits adapted to be actuated when the blades engage the terminals I59, it being understood that the contactors I51 and I59 also are provided for connection in the external control circuits in a manner well known in selector switches of this character. The set of terminals I59 and its cooperating contactors may be multiplied to any desired degree, that is to say, the rotary switch may include a plurality of terminal sets and cooperating switch blades, the sets being mounted adjacently on the frame I5I and the co-operating blades being mounted adjacently on the rotary element I53.

In the embodiment shown in Figures '1, 8, 10, and 11 of the drawings, as is also the case in Figure 1, the pickup device I5 is shown connected in parallel with the input windings 31 of the amplifying system I1 and 96 of the relay-actuating system which comprisesthe transformer 94 and filter 25 and the amplifier 23 so that the sound track I3 of the record II may operate the loud speaker I9 through the amplifier I1.while the operating components I3 may actuate the relay or relays 2I as previously described in connection with the system shown in Figure 1.

In Figures '7, 8, l0, and 11 also the rotary switch is shown diagrammatically and we have illustrated, in each case, two sets of .terminals I59, but it should be understood that any desired number of terminal sets may be used in order to multiply the control circuits actuated by the rotary switch. The rotary switch also includes a relay having a solenoid I63 mounted on the frame adjacent the solenoid and adapted to be shifted against the bias of a spring I61 whenever the solenoid I53 is energized. A switch I69 also is carried on the main frame of the rotary switch and is operatively associated with the armature I65 so as to be opened whenever the solenoid is energized. The armature I65 carries a pawl I1I extending to a ratchet wheel I13 which is fixed to the rotatable element I53. The pawl "I is normally urged by means of the spring I15 into engagement with the ratchet wheel so that as the armature is tilted on the frame I5I by the alternate effect of the spring I61 and the energized solenoid I63, the pawl may co-operate with the ratchet wheel to progressively rotate the element I53 and thus advance the switch arms I55 into progressive contact with the terminals I59. A detent I15 also is mounted on the frame in position to cooperate with the ratchet wheel to permit it to be advanced in one direction only, by the pawl 1I. The selector switch illustrated is a type commonly used in telephone circuits and we have shown it here by Way of explanation and illustration only.

In Fig. '7 of the drawings, we have illustrated a system wherein a single operating component I3" at the termination of the record is used to turn the switch arm I55 of the selector switch to a predetermined position, such as the starting position for the next succeeding series of switching movements to be performed by the selector switch when a record is again played against the ,pickup I5. The final operating component I3" in this instance preferably has a characteristic wave form different from that employed in the operating components I3. In this arrangement it may be found when the the sound may be reproduced. by meansof an amplifying system I1 connected to the pickup and a speaker I9, either with or without the filter 20, substantially as shown in Fig. 1 of the drawings. The operating components I3 and I3" may be delivered to the selector switch through a system adapted to analyze the operating components initiated in the pickup I5 by the operating frequency recordings in the record and apply the analyzed components to the selector switch in order to cause the same to operate as desired. Generally speaking, the operating components I3 are applied to the selector switch so as to progressively advance the arm II5 into successive engagement with the terminals I59, while the final operating component I3" is applied to the switch in order to cause the arm I55 to move to a desired setting from any position in which v operating component I3" is applied to the pickup device.

To this end the contacts I59 of the series I11 are, with the exception of terminals I located at the position to which the device is to be reset, connected together, and the so connected terminals are connected in a circuit including the switch I69, the normally open switch I09, a power source I 81, and the coil I53 of the relay, the other end of which coil is connected to the contactors of the terminal set I11. The coil I53 and the power source I 81 are also connected in series with a normally open switch I09. The switches I09 and I09 respectively, form a part of relays 2I and 2I', similar to the relay 2I shown in Fig. l of the drawings, the relays 2I and 2I' being connected respectively to the output of amplifying systems 23 and 23', which may be similar to the system 23 illustrated in Fig. 1. The amplifying systems in turn are connected respectively through filters 25 and 25' to the output of the transformer 94, the input of which is connected to the pickup device l5. The filters 25 and 25' are designed respectively to pass the operating components I3 and I3 so that the relay 2I is responsive only to the operating component I3, while'the relay 2| is responsive only to the operating component I3. In the system illustrated in Fig. 7, including the duplicate filter amplifying circuits 25, 23, and 25', 23', operating in parallel-from the pickup device I5, the relays 2 I- and 2I do not necessarily have to be tuned. In some instances, however, it may be desirable to utilize tuned relays connected in parallel with the output of a single filter-amplifier circuit 23. If the relays are very accurately tuned, it may be practicable to eliminate the filters and the amplifiers entirely. In any event, the switch I09 of the relay 2| will be closed against its bias every time an operating component I 3 is impressed upon the pickup, and will open as soon as the component has passed by the pickup, while the switch I09 will close only when the operating component I3" is impressed upon the pickup. As the record II moves past the pickup device I 5, the relay 2I will be energized each time the pickup device encounters one of the operating components I3, the relay 2I' remaining inactive. Each time the relay 2| is thus energized, the pawl I1I of the selector switch will advance the ratchet I13 a distance sufficient to move the contacts I51 or I58 from a terminal I59 to the next adjacent terminal. Thus, as the record progresses, the various circuits I8I will be successively actuated. At the conclusion of the record or at any desired instant during the playing thereof, when it may be desired to set the selector switch arm I55 opposite the free terminal I60, the final or swltchesetting component I3" actuates the relay 2| and closes the switch I09, thus completing a circuit through the power source I31, the coil I33 01 the switch, the contactors I61, the connected terminals I59 oi the terminal set I11, and the switch'I69. The armature I65 the selector switch will be actuated to turn the ratchet wheel. Instead of only moving once to move the contactor arm I55 to the next adjacent terminal, as is the case where the switch I09 is actuated by an operating component I3, the switch I09 is held in closed position, but'the armature I65, in moving downwardly, opens the switch I89 and breaks the circuit, thus de-energizing the coil I63 and permitting the spring I61 to raise the armature to turn the ratchet wheel, and at the same time permit the switch I69 to close and re- .energize the solenoid to again draw the armature I65 downwardly. This cycle of operation will continue with the operating circuit being opened and closed at the switch I69 until the arm I55 is turned to a position opposite the tree I terminal I60, at which time the energizing circuit oi the solenoid I63 will be broken perma nently, the arm remaining in the set position opposite the terminal I60.

When the contactor terminal I60, the arm I55 will be in starting position ready to engage the initial contact of the series I11 and I19 when the first control component I3 energizes the pickup. If desired, a timedelay device, similar to the relay I89, shown in Fig. 5 "oi the drawings, may be incorporated in the circuits controlled by the relays 2| and 2 I in order to prevent accidental operation of the selector switch.

The system illustrated in Fig. 8 of the drawings'is adapted to utilize a plurality of operating 4o frequency impulses I3 in order to set the switch .power source I81,

' may-be formed as a manually operable push but arm I65 to a desired position. The operating frequency impulses are formed as a succession of impulses, which are impressed on the record at the conclusion of the recorded sound frequency of sensory effect as indicated at I3. The switch I95-in this system is connected in series with the the solenoid coil I63 and the terminal set I11, all 0! the terminals of which set are connected together with the exception 0! the terminal I62, which, in the illustrated embodiment, is next adjacent the final terminal oi the set but which, if desired, may be of any of the terminals'oi the set opposite which it is desired to stop the arm I55. A switch I96 is also provided and this switch is adapted to beclosed just before the reproduction of the record com- 'mences. This switch may be arranged for op'eration' in any suitable or convenient manner and ton, or for operation by the starter switch that controls the mechanism for moving the record past the pickup device, but we prefer to form the switch as illustrated so that the same is closed momentarily when the arm 20I is positioned to engage the pickup device I5 with the initial pore tion of the record in commencin'gthe reproduction thereof. The switch I95 is connected in series with the power source I81 and the solenoid I83. As the record is reproduced, this solenoid I83 will be periodically actuated by the operating -frequencies I3 of the record, the actuation taking place through the system including the transformer 94, the filter 25, the amplifier 23 and the tuned relay 2I and the time delay relay I89. Consequently, the switch arm I55 will be pro- I51 engages the isolated gressively advanced and at the conclusion of the record will occupy a position opposite one of the intermediate terminals I59. At the .end of the record, the series of operating frequencies I3 will cause the switch to be'rapldly advanced, there being enough impulses to ensure that the arm I55 is carried into position opposite the free terminal I62, at which point movement of the arm in response to the energization of the relay I63 will stop because the terminal-I62 is not connected in the circuit. The switch arm will remain in such position until the switch I95 is closed, at which instance, the solenoid circuit will be completed and will cause the arm to progress to a position such that, when the solenoid I63 is energized by the first operating frequency l3 of the record, it will be moved into engagement with the terminal I59 that is connected to the first oi the external circuits III to be actuated. It will be noted that the succession of operating frequencies I3 is utilized to move the arm I55 to a position just short of the initial position after which the switch I96 is actuated to bring the switch arm into the initial position. In Figure 7, on the contrary. the actuation of the switch I69 is-utilized to bring the switch arm I55 directly to the initial position.

In Figure 10 of the drawings, the progressivelyactuated device to be controlled is shown diagrammatically as a rotary switch or the type 11- lustrated in Figure 9 and including at least two sets I11 and I19 of terminals I59 and co-operating contactors, and means is provided for resetting the arm I56 0! the device to a predetermined or starting position in response to the closure of a switch I95 during the resetting movement 0! the tone arm 20I on which the pickup I5 is-carried. To this end, one end 0! the coil of the solenoid I63 is connected in series with a contact switch I85, the other side of which is connected in series through a source of electrical power I81, and thence to the other end of the solenoid coil. The switch I85 is actuated by a time-delay relay I89, andis closed after a predetermined time-delay when the solenoid of the relay is energized.

The solenoid I88 is arranged in a series circuit including a power source HI, and the switch I09 of a system similar to that shown in Figure 1.

With such an arrangement the relay switch I09 course, possible to dispense with the time delay relay I 89 by connecting the switch I09 directly in the operating circuit of the solenoid I63 in place of the switch I85, but we prefer to use a time-delay relay to prevent operation of the op- --erating circuit when the switch I09 is closed accidentally for an instant, as sometimes happens as a result of influences exerted upon the system other than the definite operating frequencies I3.

As the record is reproduced, the operating components I3 successively cause the relay 2| to close the switch I09 and the solenoid I89 is energized to -close the switch I85. When this happens, the solenoid I63 will be energized and will actuate the armature I65 and advance the contactors I51 into engagement with the next succeeding terminal I59 of both sets I11 and I19. when the solenoid I63 .is energized by the closure 0! the switch I85, the armature I65 in the illustrated embodiment will tilt in a clockwise direction about The switching mechanism Just described is in its pivot point against the tension of the spring I61, the pawl I'll being carried downwardly. As soon as the operating frequency ends, the switches I09 and I85 open, thus breaking the solenoid circuit and permitting the spring I61 to draw the armature in a counter-clockwise direction thus raising the pawl and advancing the ratchet wheel I13 suiiiciently to turn the contacts I55 into engagement with the next adjacent terminal itself novel and when used with the record, can be utilized to efi'ect the control of the externalany desired series of operations.

After the record has been reproduced, the se lector switch, depending upon the number of op- -operating circuits I8II93, -and thus control erating components I3 contained in the record,

will have advanced to a position engaging one of the intermediate contacts I59 of the set I19, and, if theswitch is permitted to remain in such position as, for instance, that illustrated in Fig- I ure 7 of the, drawings, the switch will not be in proper position to commence the control sequence when the record is again reproduced. We have therefore, provided for returning! the selector switch to an initial or starting position automatically at the termination of the record. To this end the terminals of the set I11 with the exceptions of the end terminal I66 are connected in series.

A switch I95 is also provided and this switch is adapted to be closed whenever the pickup device is conditioned to commence the reproduction of the record.

In the illustrated embodiment, the record II is in the form of a disk and the pickup device is carried on an arm I swingably supported to move across the disk record while the switch I95 is operatively connected with the arm 2M in such a way that whenever the arm Zlll is moved to raise the pickup device from the record, the switch I95 will be closed. The switch I95 is connected in a series circuit including the switch I69, the power source I81, the contacts of the set I11, and the solenoid I63. The shorter contacts I51 being connected to one end of the solenoid coil I 63 and the contactors I51 and I58 being connected to the switch I 95 which is connected through the switch I69, and the power source to the other end of the coil I63 so that when the arm 20I is raised in order to either reset the device I5 to a position for starting the reproduction of the record, or to enable the record to be removed from its turn-table, the switch I95 will be closedf This will complete a circuit through the solenoid I63, and the armature I65 will be actuated toturn the ratchet wheel. Instead of moving only once to advance the contactor I55 to the. next adjacent terminal I59, as in the case where the switch is operated by the operating frequency I3 in the record, the switch I95 is held in closed position but the armature, in moving downwardly, opens the switch I69 and breaks the circuit, however, the arma- .ture I65 in moving upwardly, under the influence of the spring I61, will permit the switch I69 to close and re-establish the circuit through the solenoid I63. Consequently, the armature will again be turned in a counter-clockwise direction and will continue to make and break the circuit at the switch I69 and reciprocate the pawl I1I until the ratchet wheel I13 is turned to a position in which the contactor I55 of the set I11 reaches the terminal contact I66, at which time, the solenoid circuit will be broken because the terminal I 66 is not connected in the circuit as are the other terminals of the set I11.

:When the contactor I51 engages the isolated terminal I 69, the arm I55 will be in such a position that the contactors I58 will engage the contact of the series I11 and I19, which is connected in the control circuit to be actuated when the first control frequency I3 of the record energizes the pickup device so that when the record is replaced, the first operating frequency, in actuating the armature I65, will cause the contact I56 of the set I19 to engage the first terminal atthe proper instant. I I

Obviously the switch I95 does not necessarily have to be mounted for operation by the movement of the arm ZIII but may be actuated in any other suitable way, as, for instance, by forming the switch as a push button for manual operation or for operation in response tothe movement of a switch used to control the driving means, which shifts the record past the pickup device I5. It is also possible to provide for shifting the switch arm I55 to any desired position at any time by isolating one of the terminals of the set I11 to thus cause the arm opposite said isolated terminal.

In Fig. 11 of the drawings, I have shown a system wherein a plurality of loud speakers are operated, each from its individual record and operating devices are controlled by means of operating components impressed on one of the records to operate each in conjunction with one of the loud speakers so that a plurality of different sound efiects produced in synchronism each with a corresponding mechanical movement, and, all controlled from a single master control record. In the arrangement illustrated, the loud speaker I9 is operated from the master record II, which is driven by a motor M, and a turn-table driven by a motor M for each of the auxiliary records II, the motors M and M are preferably synchronized to operate at the same speed, and are preferably synchronized elec- I55 to stop trical motors driven by alternating current supplifying system I1 may be introduced between each. pickup device I5 and its corresponding speaker. Obviously, the pickup devices I5 and the speakers I9 may be of mechanical construction, but we prefer to utilize electrical pickups and sounding devices. nism for the master record, and also the turntable mechanisms for the auxiliary records II are provided with automatic resetting mechanism 255 so that at the conclusion of the playing of each record II and II, the associated pickup devices I5 and I5 will be automatically returned to starting position. The resetting mechanisms 255 may be of any suitable well,- known construction driven by a countershaft 251, which is geared to the drive motor of the turn-table with which the mechanism is asso- The turn-table mechadated. The drive shaft 251 is connected through a suitable clutch with a gear train which, when the clutch is engaged, is driven by countershait 251 and by means of a cam, raises the pickup device from the record, turns its supporting arm 20! to the initial position, and then lowers the pickup device onto the record. The clutch between the counter-shaft 251 and the pickup resetting gears is. normally open but is engaged by movement ofthc supporting arm 29I when the same reaches the terminal position from which the resetting operation is accomplished. When the clutch is engaged, the resetting mechanism is actuated and the clutch is opened when the resetting operation is completed. Each pickup resetting mechanism also drives a cam 259, which operates a switch. The devices to be operated in conjunction with the sound reproduced. by the several speakers I9 and I9 are controlled by means of the selector switch I51, similar to that heretofore described in connection with Figs. '1, 8, 9 and l0.. Any suitable system for operating the selector switch from the master control record may be employed, although, by way of example, we have shown connections similar to those utilized in Fig; 10 of the drawings, in which the selector switch is progressively operated by control impulses I3 formed in the record II, the impulses being applied to the pickup I5, thence through a relay 2| sensitive to the impulses, and delivered to the operating coil I63 of the selector switch, resetting of the switch being controlled by a switch I92 which is preferably actuated by the pickup resetting mechanism. We prefer to deliver the switch-operating impulses, initiated in pickup, to the relay 2I through the transformer 94, the filter 25 and the amplifier 23,

and to incorporate between the relay 2I and the selector switch, a' time delay device I69 in order to prevent accidental operation of the selector switch by incidental vibrations, which may be set up in the system. In any event, the operating impulses are made available to close a normally open switch, such as the switch I in a circuit 263, including the power source I81, and the operating coil I63 of the selector switch, in order to progressively advance the switch arm I55 and thus progressively actuate the circuits I8I controlled by the terminals I59 of the selector switch whereby to operate the devices controlled by the circuits I9I in timed relationship during the playing oi the record- II. The operating solenoid I63 is also included in a circuit 265, including the power source I81, the interconnected terminals of the terminal set I11, and a normally open switch I located in operative relationship with the cam 259 of the resetting mechanism of the turntable of the master record II. When the resetting mechanism of the master turn-table operates, the cam 259 closes the switch I95 and operates to reset the selector switch in the manner heretoforc described in connection with Figure 10.

One side of the power source I81 is also connected by means of the conductor 261. with the contactors I51, I58 of the selector switch whereby the power source may be progressively connected with the conductors I8I leading to the devices to be operated, the return conductor 269 from said devices being connected to the other side of the power source. The first terminal of the terminal series I19 engaged by the contactors I51, I58 during the operating movement of the switch from initial or reset position, is connected by means of the conductor 2", to energlzc a plurality of solenoids 219, each of which v motors M, that is to say,'the motors M driving the turn-tables of the auxiliary records II will be energized by the closure of the switches 215 as soon as the contactors of the selector switch engage its first terminal in response to the first operating component I3 in the master control record. Thus the auxiliary records will start in operation shortly after the master record commences, after which time the master and auxiliary records operate simultaneously, and at the same speed, since'they are driven synchronously. As the master record is reproduced, the pickup device I5 will successively engage the several recordings of the operating component I3 and the switch arm I55 will be caused to move suc-, cessively into contact with the successive terminals I59, and will thus complete the several circuits controlling the devices operated in conjunction with the sound broadcast by the several speakers. It is obvious that the conductors. I8I and the return conductor 269 maybe arranged to form suitable parallel circuits functioning to control the operation of the several operating devices in timed relationship with the. sound emitted by the corresponding loud speakers.

As soon as the contactors I51, I59 of the selector switch release the terminal which controls the solenoids 213, the same will be deenergized and open the switch 215. The power circuits leading to the motors M, however, are maintained during the playing of the records II' by short circuitlng connections including the normally closed switches 26I, aiter the solenoids 213 are de-energized. These switches 26I remain closed during the playing of the records II' and are opened by means of the cam 259 at the termination of the pickup resetting operation, to thus render the motors M inactive until the solenoids 213 are again energized. The clutches, controlling the operation of the resetting mech-' anisms, remain engaged during the first few rotations of the motors M to carry the cam 259 to a position releasing the switches 28I and permittlng them to close in order to maintain the motor circuit during the playing of the records II.

Our present invention has many practical applications. ture-display device in order to deliver a lecture or suitable music, and, at the same time, cause the picture displayed by the device to change at the proper time during the lecture or accompanying music. This is accomplished simply by having the picture-changing mechanism actuated by the relay 2|, that is to say, whenever the operating component occurs in the record I I, the picture will be changed.

The picture-display device may be of any type, for instance, the ordinary automatic stereopticon or slide-projector comprising devices for presenting a series of slides or pictures in position for display, or may be a still-film projector, that is to say, a device employing cinematograph film having pictures photographed in the successive frames of the film and mechanism for advancing one frame at a time and allowing each picture frame to remain in display position until the It may be incorporated with a picpicture-changing mechanism is again actuated to 75 advance the next frame into displaying position. The apparatus and method of our invention may also be used in art museums to actuate picture-illuminating means in conjunction with the reproduction of a lecture concerning the pictures, which lecture may be delivered or broadcast from a centrally located loud speaker or speakers, the pictures being successively illuminated in order to render them highly visible as they are described during the progress of the lecture.

The invention may also be utilized to eifect a practical automatic demonstration of, any mechanical device requiring demonstration, as, for instance, in a shop window or elsewhere, in conjunction with the' delivery of a lecture or explanatory talk, the operationof the demonstrated device being controlled through the relay'or relays II in order to occur at the proper time during the course of the lecture. The control of the operation of the device being demonstrated and the lecture both originate from the pickup I! or its equivalent.

. Patent is:

It is thought that the invention and numerous of its attendant advantages will be understood from the foregoing description and it is obvious that numerous changes may be made in the form, construction, and arrangement of the several parts without departing. from the spirit or scope of our invention, or sacrificing any of its attendant advantages, the forms herein described being preferred embodiments for the purpose of illustrating our invention.

We do not herein claim the broad subject matter of invention claimed inour Patent No. 1,909,- 765, issued May 16, 1933; nor do we herein claim the record itself nor the methods of making it, since the same forms the subject matter of our 'copending application, Serial Number 662,860,

flied March 27, 1933.

Having thus described our invention, what we claim as new and desire to obtain by Letters 1. The combination with a record having a device operating frequency component, means for operating said record to cause it to repeat itself, of a cyclically operable device, and means responsive to said component of the record for repeatedly initiating the actuation of said device in synchronism with the operation of said record.

2. The combination with a pickup device, of a record havinga plurality of operating frequencies, a progressively or cyclically. operable switch for progressively controlling external circuits, means responsive to one of said operating frequencies made effective in the pickup device from the record for progressively actuating the switch,

and means responsive to another operating fre-- quency during the reproduction of the record to set the device to a desired position from any other position within its operating range.

3. The combination with a pickup device, of a record comprising a recorded track including a device-operating recording, a progressively operable device, means responsive to the deviceoperating recording in the record made eilective I through the pickup device for progressively actuating the operable device, and means operable at a predetermined instant during the reproduction of the record to set the device to a desired position from any other position withinlts operating range.

4. The combination with a pickup device, of a record and a progressively operable switch for controlling externalcircuits, said record comprising a single recorded track incorporating two with a recording,

5. The combination, with a record having a track containing a device-operating component and with means for automatically repeating said record, of a separatelyv operable device, and means responsive to said component for automatically initiating the actuation of said device each time said record is repeated.

6. The combination, with a record having a track containing two device-operating components and with means for automatically repeating said record, of a separately operable device progressively operable in successive stages, means responsive to one of said components for progressively shifting said device from one stage to another, and means responsive to the other of said components for automatically initiating the actuation of a predetermined stage of said device each time said record is repeated. 4

'7. The combination, with a record provided with different types of recordings, of means for causing said record to repeat itself, a control for other effects which is responsive in stages to one of said types of recording, and means responsive to another type of recording for setting said control toa predetermined initial position in synchronism with the repeating of said record.

8. The combination, with a record provided of means for causing said record to repeat itself, a control for other effects which is correlated with the operation of the record, and means responsive to said recording for setting said control to a predetermined initial position in synchronism with the repeating of said record.

9. The combination with a pickup device, of a progressively operable switch including a plurality of terminals adapted to be connected in external circuits, a shiftable contactor for progressively engaging the terminals in order to control the external circuits, means including a solenold responsive to device-operating vibrations recorded in the record for advancing the contactor, and means controlled by the movement of said contactor for rendering the solenoid inactive to advance the contactor when it reaches a predetermined position in the switch.

10. The combination with a pickup device, a record acted on by said pickup device, progressively operable means adapted to be operated in timed relationship with said record, means responsive to operating vibrations recorded in the record for actuating said progressively operable means, and means including a normally closed switch adapted to be opened when the pickup reaches a predetermined position during the playing of the record in order to set the progressively operable means to a desired position from any other position within its operating range.

11. The combination with means for operating a plurality of records, of separate operable devices, each operating in conjunction with one of the records, and control means responsive to device-operating impulses recorded in at least one of the records for controlling the operation of the several devices. l

12; The combination as set forth in claim 11 wherein the control means comprises a progressive-ly operable selector switch including a relay operable in response to device-operating impulses recorded in at least one of the records being reproduced, and electrical circuits progressively energized by said selector switch and operatively associated with the operable means whereby to operate the same in timed relationship with the operation of the several records.

13. The combination as set forth in claim 11 

